Performance Analysis of Slotted Aloha Protocol in Wireless Cognitive Radio Networks

Yıl 2015, Cilt: 3 , 248 - 251, 30.12.2015

Muhammed Enes Bayrakdar Ali Çalhan

Öz

With the growing use of frequency based services

and devices, the cognitive radio network has become an

important technology for the future of wireless networks.

However, the number of frequency based network applications

for fixed and mobile devices both in licensed, and unlicensed

networks also shows a significant increase. In addition to

frequency based applications; for efficient use of spectrum in

cognitive radio networks, characteristics of medium access

techniques is utilized. Among these medium access techniques,

slotted Aloha technique is among the most preferred. In our

study, simulation of a cognitive radio network environment that

consists of primary and secondary users utilizing slotted Aloha

medium access technique is performed. The simulation of

designed network environment is carried out by using Riverbed

software. Upon making end to end delay analysis of the designed

network, the results of maximum number of users that could be

supported in cognitive radio networks utilizing slotted Aloha

technique is observed.

Anahtar Kelimeler

Cognitive radio, delay analysis, slotted Aloha

Kaynakça

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